| 摘要 |
<p>A sanitation device (100) adapted for use in a railway carriage toilet; said device comprising flow preventing means comprising at least two movable elements (3, 5) adapted to be displaced between an operative open configuration and an operative closed configuration; displacement means cooperating with said elements (3, 5); said displacement means operable by movement of the carriage; and biasing means (23) cooperating with said elements (3, 5) and displacement means; said biasing means (23) adapted to hold said elements (3, 5) in a closed configuration when said carriage is stationary or below a predetermined speed.</p> |
